Vending machine



FIG. 1 is a front perspective view of the vending machine with a window, a control panel, and a product retrieval area shown in broken lines, and forming no part of the claimed design;

FIG. 2 is a front elevational view of the vending machine of FIG. 1;

FIG. 3 is a rear elevational view of the vending machine of FIG. 1;

FIG. 4 is left side elevational view of the vending machine of FIG. 1;

FIG. 5 is a right side elevational view of the vending machine of FIG. 1;

FIG. 6 is a top plan view of the vending machine of FIG. 1; and,

FIG. 7 is a bottom plan view of the vending machine of FIG. 1. 

CLAIM The ornamental design for a vending machine, as shown and described. 